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DISCOVERY CENTI MICROSCOPES
General use
The Discovery Centi microscope is safe for health, life and property of the consumer and the environment when
properly used, and meets the requirements of international standards. The microscope is designed for observing
transparent objects in the transmitted light using the bright field method. May be used by kids over 5 years old.
Caution! Children should use the microscope under an adult’s supervision only.
Microscope parts
• Base.
It supports the weight of the microscope and houses the illumination source, electronics and control
mechanisms.
• Eyepiece tube.
Combines the eyepiece with the objectives system.
• Eyepiece and objective.
Consist of lenses that allow magnifying the image. The total magnification is
calculated by multiplying the eyepiece magnification to the objective magnification.
• Revolving nosepiece.
This triple nosepiece with 3 pre-installed objectives allows you to change objectives
smoothly and easily.
• Stage.
Sturdy and reliable stage with two specimen holders can be used to move your slides while observing
them. The lower illumination light passes through the opening in the middle of the stage.
• Focusing knob.
A coarse focusing system allows adjusting the sharpness of the specimen image.
• Lower illumination.
LED illumination can be powered by 2 AA batteries. You can use a mirror for the daylight
observations also. The lower illumination is used to observe transparent objects. Using a supplemental light
source, such as a table lamp, directed at the specimen will enable you to observe less transparent objects.
Using the microscope
Getting started
• Unpack the microscope and make sure all parts are available.
•
Make sure the batteries are correctly installed in the battery compartment; insert new batteries if required.
•
Put the microscope on a level surface and switch on the light. You can use the microscope without the light,
using a mirror. Put it next to the source of the bright light (a window or a desk lamp). Turn the mirror to the
source of light — a bright spot of light shall be seen in the eyepiece.
Focusing
•
Place a specimen on the stage and fix it with the holders.
•
Start your observations with the lowest magnification objective and select a specimen segment for detailed
research. Then move the specimen to center the selected segment in the field of view, to make sure it keeps
centered when the objective is changed to a more powerful one. Once the segment is selected, you should
center its image in the microscope’s field of view as precisely as possible. Otherwise, the desired segment
might fail to center in the field of view of the higher power objective. Now you can switch to a more powerful
objective by rotating the revolving nosepiece. Adjust the image focus if required.
• Move the specimen to place its thickest part exactly under the objective.
• Adjust sharpness, rotating the focusing knob, until you see a sharp image.
Caution!
The objective should not
touch the specimen, otherwise the objective or/and the specimen might be damaged.
The kit includes
• Discovery Centi 01:
microscope, eyepiece, pipette, prepared slides (2pcs), blank slides (2pcs), cover slips
(5pcs), slide stickers (5pcs), glue, sea salt.
• Discovery Centi 02:
microscope, eyepiece, pipette, prepared slides (3pcs), blank slides (3pcs), cover slips
(6pcs), slide stickers (6pcs), glue, sea salt, flask with brine shrimp, brine shrimp hatchery, spatula, scalpel,
pestle.
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